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Posted to dev@mahout.apache.org by "Andrew Palumbo (JIRA)" <ji...@apache.org> on 2017/05/23 22:55:04 UTC

[jira] [Resolved] (MAHOUT-1963) Signs are Flipped in the ViennaCL Sparse %*% Sparse tests

     [ https://issues.apache.org/jira/browse/MAHOUT-1963?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrew Palumbo resolved MAHOUT-1963.
------------------------------------
    Resolution: Fixed

resolved in 0.13.1 release

> Signs are Flipped in the ViennaCL Sparse %*% Sparse tests
> ---------------------------------------------------------
>
>                 Key: MAHOUT-1963
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-1963
>             Project: Mahout
>          Issue Type: Bug
>    Affects Versions: 0.13.0
>            Reporter: Andrew Palumbo
>            Assignee: Andrew Palumbo
>            Priority: Critical
>             Fix For: 0.13.0, 0.13.1
>
>
> Here aand in other places, In the ViennaCL (both modules) Unit tests, the signs are flipped when adding random data to matrices.
> {code}
>     // add some sparse data with a 20% threshold
>     mxA := { (_, _, v) => if (r.nextDouble()  .20) r.nextDouble() else v }
>     mxB := { (_, _, v) => if (r.nextDouble() < .20) r.nextDouble() else v }
> {code}



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